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Finding the Fourth Proportional to 767,333.44, 1,058,920.80 and 427,794.88

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Solution

The fourth proportional to 767,333.44, 1,058,920.80 and 427,794.88 is: 590,357.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    767,333.44 : 1,058,920.80 = 427,794.88 : x
  2. Step 2: Convert to fraction form
    767,333.44/1,058,920.80 = 427,794.88/x
  3. Step 3: Cross multiply
    767,333.44x = 1,058,920.80 × 427,794.88
  4. Step 4: Simplify right side
    767,333.44x = 453,000,896,565.50
  5. Step 5: Solve for x
    x = 453,000,896,565.50/767,333.44
  6. Step 6: Final answer
    x = 590,357.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.